Pet brush



FIG. 1 is a top perspective view of a pet brush showing my new design;

FIG. 2 is a front elevational view of the pet brush;

FIG. 3 is a left side elevational view of the pet brush, the opposite sidev iew being the mirror image thereof;

FIG. 4 is a rear elevational view of the pet brush;

FIG. 5 is a top plan view of the pet brush; and,

FIG. 6 is a bottom plan view of the pet brush.

The broken lines on the bottom portion of the claimed article are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a pet brush, as shown and described. 